歇山gable and hip roof 庑殿hip roof 四阿hip roof 卷棚round ridge roof 重檐double eave roof 攒尖pyramidal roof 园攒尖round pavilion roof 大木wooden structure 大式wooden frame with dougong 小式wooden frame without dougong 大木作carpentry work 小木作joinery work 抬梁式构架post and lintel constructio...